Finding the Fourth Proportional to 214,559.10, 321,861.12 and 79,660.08
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Solution
The fourth proportional to 214,559.10, 321,861.12 and 79,660.08 is: 119,498.46
Step by Step Solution
- Step 1: Write the proportion equation
214,559.10 : 321,861.12 = 79,660.08 : x - Step 2: Convert to fraction form
214,559.10/321,861.12 = 79,660.08/x - Step 3: Cross multiply
214,559.10x = 321,861.12 × 79,660.08 - Step 4: Simplify right side
214,559.10x = 25,639,482,568.09 - Step 5: Solve for x
x = 25,639,482,568.09/214,559.10 - Step 6: Final answer
x = 119,498.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.